Physics (10th Edition)

Published by Wiley
ISBN 10: 1118486897
ISBN 13: 978-1-11848-689-4

Chapter 8 - Rotational Kinematics - Problems - Page 213: 16


The amount of time it takes to reach operating speed is $1.3s$

Work Step by Step

The dryer's initial speed is $\omega_0=0$ and the operating speed is $\omega=5.2rad/s$. It has an average acceleration of $\overline\alpha=4rad/s^2$ The amount of time it takes to reach the operating speed is $$\Delta t=\frac{\omega-\omega_0}{\overline\alpha}=1.3s$$
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